: The question I find though is why Borens Syndrome as a coverup? What effects
: from Project Orion would be explained away by Borens Syndrome?
: One thing I note is that the medical record suggests it means his lifespan
: will be greatly reduced. Well, Johnson is apparently around about 70 now.
: Perhaps part of Project Orion has meant that while he seemingly ages slower
: physically (or spent half his life in cryo-freeze), it does not actually
: extend his whole lifespan beyond a normal person and he could actually die
: of 'old age' in the next 10 or 20 years, while still looking far younger.

If ILB is canon, then the apparent age thing must be a side affect of being an S-I. Jan's dad in ILB was a Spartan-1, and the story takes place in 2552, so then he too would be around 70, unless I missed something. He doesn't sound 70, so we can only assume that a person's life span must be extended by the procedures. Of course, with advancements in medical science by the time Halo comes around, this could all be irrelevant. So what if he’s old enough to be on Medicare, Sarge is still a badass.